Rephrase Optional usage to quite warnings
authorTom Jackson <tjackson@fb.com>
Thu, 1 Jun 2017 15:44:32 +0000 (08:44 -0700)
committerFacebook Github Bot <facebook-github-bot@users.noreply.github.com>
Thu, 1 Jun 2017 15:51:42 +0000 (08:51 -0700)
commit4ae89dde442b84eb4501365f7cb0cfe8ffb0ed2d
tree741f2ce9776a40c1e2b806365778f9846ba4d855
parente51e77808a23b50ae1d61ec0a9ca2a5f89e4b9bb
Rephrase Optional usage to quite warnings

Reviewed By: yfeldblum

Differential Revision: D5105818

fbshipit-source-id: e3926a0c70a68855e0180bdd44cb0ec76e66bb94
folly/gen/Base-inl.h